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![Jakub Kicinski](/assets/img/avatar_default.png)
Convert all SET commands where new common code is applicable. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
248 lines
7.1 KiB
C
248 lines
7.1 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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#include <linux/phy.h>
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#include <linux/ethtool_netlink.h>
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#include "netlink.h"
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#include "common.h"
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struct plca_req_info {
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struct ethnl_req_info base;
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};
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struct plca_reply_data {
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struct ethnl_reply_data base;
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struct phy_plca_cfg plca_cfg;
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struct phy_plca_status plca_st;
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};
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// Helpers ------------------------------------------------------------------ //
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#define PLCA_REPDATA(__reply_base) \
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container_of(__reply_base, struct plca_reply_data, base)
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static void plca_update_sint(int *dst, const struct nlattr *attr,
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bool *mod)
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{
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if (!attr)
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return;
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*dst = nla_get_u32(attr);
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*mod = true;
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}
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// PLCA get configuration message ------------------------------------------- //
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const struct nla_policy ethnl_plca_get_cfg_policy[] = {
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[ETHTOOL_A_PLCA_HEADER] =
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NLA_POLICY_NESTED(ethnl_header_policy),
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};
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static int plca_get_cfg_prepare_data(const struct ethnl_req_info *req_base,
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struct ethnl_reply_data *reply_base,
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struct genl_info *info)
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{
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struct plca_reply_data *data = PLCA_REPDATA(reply_base);
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struct net_device *dev = reply_base->dev;
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const struct ethtool_phy_ops *ops;
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int ret;
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// check that the PHY device is available and connected
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if (!dev->phydev) {
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ret = -EOPNOTSUPP;
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goto out;
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}
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// note: rtnl_lock is held already by ethnl_default_doit
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ops = ethtool_phy_ops;
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if (!ops || !ops->get_plca_cfg) {
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ret = -EOPNOTSUPP;
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goto out;
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}
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ret = ethnl_ops_begin(dev);
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if (ret < 0)
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goto out;
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memset(&data->plca_cfg, 0xff,
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sizeof_field(struct plca_reply_data, plca_cfg));
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ret = ops->get_plca_cfg(dev->phydev, &data->plca_cfg);
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ethnl_ops_complete(dev);
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out:
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return ret;
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}
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static int plca_get_cfg_reply_size(const struct ethnl_req_info *req_base,
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const struct ethnl_reply_data *reply_base)
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{
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return nla_total_size(sizeof(u16)) + /* _VERSION */
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nla_total_size(sizeof(u8)) + /* _ENABLED */
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nla_total_size(sizeof(u32)) + /* _NODE_CNT */
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nla_total_size(sizeof(u32)) + /* _NODE_ID */
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nla_total_size(sizeof(u32)) + /* _TO_TIMER */
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nla_total_size(sizeof(u32)) + /* _BURST_COUNT */
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nla_total_size(sizeof(u32)); /* _BURST_TIMER */
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}
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static int plca_get_cfg_fill_reply(struct sk_buff *skb,
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const struct ethnl_req_info *req_base,
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const struct ethnl_reply_data *reply_base)
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{
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const struct plca_reply_data *data = PLCA_REPDATA(reply_base);
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const struct phy_plca_cfg *plca = &data->plca_cfg;
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if ((plca->version >= 0 &&
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nla_put_u16(skb, ETHTOOL_A_PLCA_VERSION, plca->version)) ||
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(plca->enabled >= 0 &&
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nla_put_u8(skb, ETHTOOL_A_PLCA_ENABLED, !!plca->enabled)) ||
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(plca->node_id >= 0 &&
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nla_put_u32(skb, ETHTOOL_A_PLCA_NODE_ID, plca->node_id)) ||
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(plca->node_cnt >= 0 &&
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nla_put_u32(skb, ETHTOOL_A_PLCA_NODE_CNT, plca->node_cnt)) ||
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(plca->to_tmr >= 0 &&
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nla_put_u32(skb, ETHTOOL_A_PLCA_TO_TMR, plca->to_tmr)) ||
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(plca->burst_cnt >= 0 &&
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nla_put_u32(skb, ETHTOOL_A_PLCA_BURST_CNT, plca->burst_cnt)) ||
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(plca->burst_tmr >= 0 &&
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nla_put_u32(skb, ETHTOOL_A_PLCA_BURST_TMR, plca->burst_tmr)))
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return -EMSGSIZE;
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return 0;
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};
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// PLCA set configuration message ------------------------------------------- //
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const struct nla_policy ethnl_plca_set_cfg_policy[] = {
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[ETHTOOL_A_PLCA_HEADER] =
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NLA_POLICY_NESTED(ethnl_header_policy),
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[ETHTOOL_A_PLCA_ENABLED] = NLA_POLICY_MAX(NLA_U8, 1),
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[ETHTOOL_A_PLCA_NODE_ID] = NLA_POLICY_MAX(NLA_U32, 255),
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[ETHTOOL_A_PLCA_NODE_CNT] = NLA_POLICY_RANGE(NLA_U32, 1, 255),
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[ETHTOOL_A_PLCA_TO_TMR] = NLA_POLICY_MAX(NLA_U32, 255),
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[ETHTOOL_A_PLCA_BURST_CNT] = NLA_POLICY_MAX(NLA_U32, 255),
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[ETHTOOL_A_PLCA_BURST_TMR] = NLA_POLICY_MAX(NLA_U32, 255),
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};
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static int
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ethnl_set_plca(struct ethnl_req_info *req_info, struct genl_info *info)
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{
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struct net_device *dev = req_info->dev;
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const struct ethtool_phy_ops *ops;
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struct nlattr **tb = info->attrs;
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struct phy_plca_cfg plca_cfg;
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bool mod = false;
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int ret;
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// check that the PHY device is available and connected
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if (!dev->phydev)
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return -EOPNOTSUPP;
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ops = ethtool_phy_ops;
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if (!ops || !ops->set_plca_cfg)
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return -EOPNOTSUPP;
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memset(&plca_cfg, 0xff, sizeof(plca_cfg));
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plca_update_sint(&plca_cfg.enabled, tb[ETHTOOL_A_PLCA_ENABLED], &mod);
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plca_update_sint(&plca_cfg.node_id, tb[ETHTOOL_A_PLCA_NODE_ID], &mod);
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plca_update_sint(&plca_cfg.node_cnt, tb[ETHTOOL_A_PLCA_NODE_CNT], &mod);
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plca_update_sint(&plca_cfg.to_tmr, tb[ETHTOOL_A_PLCA_TO_TMR], &mod);
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plca_update_sint(&plca_cfg.burst_cnt, tb[ETHTOOL_A_PLCA_BURST_CNT],
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&mod);
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plca_update_sint(&plca_cfg.burst_tmr, tb[ETHTOOL_A_PLCA_BURST_TMR],
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&mod);
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if (!mod)
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return 0;
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ret = ops->set_plca_cfg(dev->phydev, &plca_cfg, info->extack);
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return ret < 0 ? ret : 1;
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}
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const struct ethnl_request_ops ethnl_plca_cfg_request_ops = {
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.request_cmd = ETHTOOL_MSG_PLCA_GET_CFG,
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.reply_cmd = ETHTOOL_MSG_PLCA_GET_CFG_REPLY,
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.hdr_attr = ETHTOOL_A_PLCA_HEADER,
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.req_info_size = sizeof(struct plca_req_info),
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.reply_data_size = sizeof(struct plca_reply_data),
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.prepare_data = plca_get_cfg_prepare_data,
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.reply_size = plca_get_cfg_reply_size,
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.fill_reply = plca_get_cfg_fill_reply,
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.set = ethnl_set_plca,
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.set_ntf_cmd = ETHTOOL_MSG_PLCA_NTF,
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};
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// PLCA get status message -------------------------------------------------- //
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const struct nla_policy ethnl_plca_get_status_policy[] = {
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[ETHTOOL_A_PLCA_HEADER] =
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NLA_POLICY_NESTED(ethnl_header_policy),
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};
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static int plca_get_status_prepare_data(const struct ethnl_req_info *req_base,
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struct ethnl_reply_data *reply_base,
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struct genl_info *info)
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{
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struct plca_reply_data *data = PLCA_REPDATA(reply_base);
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struct net_device *dev = reply_base->dev;
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const struct ethtool_phy_ops *ops;
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int ret;
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// check that the PHY device is available and connected
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if (!dev->phydev) {
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ret = -EOPNOTSUPP;
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goto out;
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}
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// note: rtnl_lock is held already by ethnl_default_doit
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ops = ethtool_phy_ops;
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if (!ops || !ops->get_plca_status) {
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ret = -EOPNOTSUPP;
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goto out;
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}
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ret = ethnl_ops_begin(dev);
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if (ret < 0)
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goto out;
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memset(&data->plca_st, 0xff,
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sizeof_field(struct plca_reply_data, plca_st));
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ret = ops->get_plca_status(dev->phydev, &data->plca_st);
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ethnl_ops_complete(dev);
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out:
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return ret;
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}
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static int plca_get_status_reply_size(const struct ethnl_req_info *req_base,
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const struct ethnl_reply_data *reply_base)
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{
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return nla_total_size(sizeof(u8)); /* _STATUS */
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}
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static int plca_get_status_fill_reply(struct sk_buff *skb,
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const struct ethnl_req_info *req_base,
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const struct ethnl_reply_data *reply_base)
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{
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const struct plca_reply_data *data = PLCA_REPDATA(reply_base);
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const u8 status = data->plca_st.pst;
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if (nla_put_u8(skb, ETHTOOL_A_PLCA_STATUS, !!status))
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return -EMSGSIZE;
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return 0;
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};
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const struct ethnl_request_ops ethnl_plca_status_request_ops = {
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.request_cmd = ETHTOOL_MSG_PLCA_GET_STATUS,
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.reply_cmd = ETHTOOL_MSG_PLCA_GET_STATUS_REPLY,
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.hdr_attr = ETHTOOL_A_PLCA_HEADER,
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.req_info_size = sizeof(struct plca_req_info),
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.reply_data_size = sizeof(struct plca_reply_data),
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.prepare_data = plca_get_status_prepare_data,
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.reply_size = plca_get_status_reply_size,
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.fill_reply = plca_get_status_fill_reply,
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};
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